Right-wingers have been trying to prevent poor people from voting only in the past 15 years. The 15 years before that, most people (including the poor) thought that voting for right-wingers would bring them untold riches, a la Ronald Reagan's promises.
Then, poor people began to see that voting right-wing is a huge mistake, and they started voting for moderates (there are few left-wingers in American electoral politics).
So, the right-wing is making it harder for poor people to vote.
The right-wing warns that voter fraud is rampant and voting laws must be tightened to protect . . . well, themselves, I guess.
The preponderance of voter fraud is a laugh. In the years 2000 - 2010, the years of the strongest anti-voting campaigning, 13 credible cases of in-person voter impersonation were reported.
That's 13 out of 649,000,000 votes case in ten years.
In that same time period 441 Americans were reported killed by lightning and 47,000 UFO sightings were reported.
Why does science fiction seem so realistic and right-wing politics like a plan from outer space?
UFO Sightings Are More Common Than Voter Fraud